Arsenazo III2,2′-(1,8-Dihydroxy-3,6-disulfonaphthylene-2,7-bisazo)bisbenzenearsonic acidC22H18As2N4O14S2 If you need bigger quantities than indicated on the web site, please contact us for a personal offer.

Chromazurol B2,6-Dichloro-4’-hydroxy-3’3’’-dimetylfuchsone-5’,5’’-dicarboxylic acid, disodium saltC23H14Cl2Na2O6 If you need bigger quantities than indicated on the web site, please contact us for a personal offer.

Ferene5,5′-[3-(2-Pyridyl)-1,2,4-triazine-5,6-diyl]difuran-2-sulfonic acid sodium saltC16H8N4O8S2Na2 If you need bigger quantities than indicated on the web site, please contact us for a personal offer.

Nitro-PAPS2-(5-Nitro-2-pyridylazo)-5-(N-n-propyl-N-(3-sulfopropyl)amino)phenol, disodium salt, dihydrateC17H19N5Na2O6S.2H2O This compound is used for the direct determination of serum iron or other metals.If you need bigger quantities than indicated on the web site, please contact us for a personal offer.

3,5-DiBr-PAESA4-(3,5-Bromo-2-pyridylazo)-N-ethyl-N-(3-sulfopropyl)aniline,monosodium salt,monohydrateC16H17Br2N4NaO3S.H2O This compound is used for the detection of Cu(II) and Ag(I) in clinical chemistry reagents. Λ max and absorptivity, respectively 639nm/134,000 and 618nm/80,000If you need bigger quantities than indicated on the web site, please...

4-ChlorophenolC6H5ClO This reagent forms highly stable dye through an oxidative coupling reaction with 4-Aminoantipyrine (4-AA) in the presence of hydrogen peroxide and peroxidase.If you need bigger quantities than indicated on the web site, please contact us for a personal offer.

TBHBATri Bromo Hydroxybenzoic acidC7H3O3Br3 This reagent form highly stable dye through an oxidative coupling reaction with 4-Aminoantipyrine (4-AA) or 3-Methylbenzothiazolinone hydrazone (MBTH) in the presence of hydrogen peroxide and peroxidase.If you need bigger quantities than indicated on the web site, please contact us for a personal offer.

HTIBTri Iodo Hydroxybenzoic acidC7H3O3I3 This reagent form highly stable dye through an oxidative coupling reaction with 4-Aminoantipyrine (4-AA) or 3-Methylbenzothiazolinone hydrazone (MBTH) in the presence of hydrogen peroxide and peroxidase.If you need bigger quantities than indicated on the web site, please contact us for a personal offer.

This chromogen is used for the detection of Fe(II) and Co(III) in clinical chemistry reagents. EDTA can dissolve Cu(II) and Ni(II) cmplexes so it is useful to determine Fe in the presence of Cu and Ni. Fe(II) complexe absorbs at 558nm / 89,000.